16398881248 has 24 divisors (see below), whose sum is σ = 32400209520. Its totient is φ = 8170256640.

The previous prime is 16398881237. The next prime is 16398881273. The reversal of 16398881248 is 84218889361.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16398881192 and 16398881201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 902868 + ... + 920851.

It is an arithmetic number, because the mean of its divisors is an integer number (1350008730).

Almost surely, 2^16398881248 is an apocalyptic number.

It is an amenable number.

16398881248 is a deficient number, since it is larger than the sum of its proper divisors (16001328272).

16398881248 is a wasteful number, since it uses less digits than its factorization.

16398881248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824010 (or 1824002 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 58.

The spelling of 16398881248 in words is "sixteen billion, three hundred ninety-eight million, eight hundred eighty-one thousand, two hundred forty-eight".